Search a number
-
+
152664420 = 223517971543
BaseRepresentation
bin10010001100101…
…11100101100100
3101122021011012210
421012113211210
5303040230140
623052043420
73532424526
oct1106274544
9348234183
10152664420
11791a2047
1243163570
132582289c
14163bda16
15d608d80
hex9197964

152664420 has 96 divisors (see below), whose sum is σ = 457567488. Its totient is φ = 37896192.

The previous prime is 152664401. The next prime is 152664451. The reversal of 152664420 is 24466251.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 98169 + ... + 99711.

It is an arithmetic number, because the mean of its divisors is an integer number (4766328).

Almost surely, 2152664420 is an apocalyptic number.

152664420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 152664420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (228783744).

152664420 is an abundant number, since it is smaller than the sum of its proper divisors (304903068).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

152664420 is a wasteful number, since it uses less digits than its factorization.

152664420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1669 (or 1667 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 30.

The square root of 152664420 is about 12355.7444130251. The cubic root of 152664420 is about 534.4568044799.

The spelling of 152664420 in words is "one hundred fifty-two million, six hundred sixty-four thousand, four hundred twenty".

Divisors: 1 2 3 4 5 6 10 12 15 17 20 30 34 51 60 68 85 97 102 170 194 204 255 291 340 388 485 510 582 970 1020 1164 1455 1543 1649 1940 2910 3086 3298 4629 4947 5820 6172 6596 7715 8245 9258 9894 15430 16490 18516 19788 23145 24735 26231 30860 32980 46290 49470 52462 78693 92580 98940 104924 131155 149671 157386 262310 299342 314772 393465 449013 524620 598684 748355 786930 898026 1496710 1573860 1796052 2245065 2544407 2993420 4490130 5088814 7633221 8980260 10177628 12722035 15266442 25444070 30532884 38166105 50888140 76332210 152664420